egg|nomz|egg changed the topic of #kspacademia to: https://gist.github.com/pdn4kd/164b9b85435d87afbec0c3a7e69d3e6d | Dogs are cats. Spiders are cat interferometers. | Космизм сегодня! | Document well, for tomorrow you may get mauled by a ネコバス. | <UmbralRaptor> egg|nomz|egg: generally if your eyes are dewing over, that's not the weather. | <ferram4> I shall beat my problems to death with an engineer.
<egg>
bofh: Wikipedia cites 24/24, 24/15, 24/9, 24/6, 24/4, 24/3, and 24/2 which is probably from Luger et al. 2017 + some trivial arithmetic
<bofh>
313/34 for the third-last. wtf, these are all crazy weird, but I guess there's constant perturbations in the system.
<bofh>
yeah I'm not sure I believe those
<egg>
;rpn 2.42180746 1.51087637 /
<kmath>
egg: 1.602915703817646
<egg>
bofh: that's close to 8/5
<egg>
it's not 8/5, but it's furiously close
<iximeow>
!wpn -add:adj furious
<Qboid>
iximeow: Adjective already added!
<UmbralRaptor>
!choose cats are functional|cats are object oriented
<Qboid>
UmbralRaptor: Your options are: cats are functional, cats are object oriented. My choice: cats are object oriented
<egg>
UmbralRaptor: I mean we know that whitequark is
<egg>
!wpn whitequark
* Qboid
gives whitequark a scatter insulator with a scale attachment
<UmbralRaptor>
well, yes.
<Majiir>
How can you Shroedinger a cat without mutation?
<bofh>
egg: so like it might be 8/5 and our detection ability being limited is adding in the uncertainty, perhaps? or am I totally off the mark?
<egg>
bofh: nah, the uncertainties are way below that
<egg>
bofh: the periods are basically the only thing you measure directly, and you can refine it arbitrarily with moar observation time and good clocks
<egg>
so on those 1.51087637 2.42180746 4.049959 6.099043 9.205585 12.354473 18.767953 you have ±0.00000039 ±0.00000091 ±0.000078 ±0.000015 ±0.000016 ±0.000018 ±0.000080
<egg>
bofh: the periods have lower errors than the mid-transit times, since you can just wait a long time and get another transit to refine the error on the period
<egg>
Majiir: I mean you can clearly superpose it; it's collapsing that's a mess
<egg>
!wpn Majiir
* Qboid
gives Majiir a Lie group
<egg>
!wpn bofh
* Qboid
gives bofh an observable
* UmbralRaptor
assumes that one can shield the cat from the radioactive source, or use an alternate random method.
<egg>
bofh: how do you do something with 1.602915703817646 though that's still not 8/5 >_>
<egg>
after ~50 orbits of b the closest transits change phase...
<egg>
something something vernier scale
<egg>
;rpn 18.767953 1.51087637 /
<kmath>
egg: 12.421898556795881
<egg>
;rpn 4.049959 1.51087637 /
<kmath>
egg: 2.680536330050618
<egg>
;rpn 6.099043 6.099043 /
<kmath>
egg: 1
<egg>
um
<egg>
;rpn 6.099043 1.51087637 /
<kmath>
egg: 4.036758480774969
<egg>
bofh: that's a pretty convincing 4
<egg>
and then the convergents are 109/27 and 440/109
<egg>
so that's d/b
<egg>
c/d has 8/5, then 109/68 and 880/549
<egg>
bofh: they might not be simple ratios, but they're pretty close, and the convergents are similar
<UmbralRaptor>
e has earthlike density, and nicer flux. Mass is probably good?
<egg>
UmbralRaptor: amusingly assuming tidal locking, you don't have a day, and with synodic periods you don't have a year either, so the only time unit you can use is some other planet's synodic period?!
<UmbralRaptor>
Hah
<UmbralRaptor>
Tracking things like conjunction and opposition?
<egg>
yeah
<egg>
bofh: oh wait I'm an idiot, of course the numbers were weirdly off, it's the synodic periods that are ~exactly in nice ratios
<egg>
bofh: the wikipedia article is somewhat error-inducing in that respect
<bofh>
...riiiiiiiiiiiiiight I'm also an idiot, but I also blame wikipedia here :P
<egg>
higher convergents are not preserved within the 1σ uncertainties on the periods, so that's basically all exact
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<bofh>
nice.
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<egg>
UmbralRaptor: bofh: wait I'm confused again, why is it the synodic periods that are nice here but in things like kirkwood gaps it's obviously the sidereal periods (since there's nothing with respect to which anything would be synodic)
* Iskierka
spies a bofh on her timeline
<bofh>
Iskierka: you would be correct
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<egg>
UmbralRaptor: bofh: okay but now the longest cycles is just 18 synodic periods of b, which is 36 days, that's a bit short for the longest cycle of a calendar
<egg>
there are synodic period ratios yielding cycles of 2, 6, 9, 12, 18, and 36 synodic periods of b
<egg>
no wait there's no 36
<egg>
UmbralRaptor: should the sidereal period be involved in some fashion too? or is there another way to summon longer periods?
<bofh>
grr, I forgot way more of my orbital mechanics than I thought >_>
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* egg
pets UmbralRaptor
<UmbralRaptor>
egg: something with nutation (if present), or eg: alignments with the outer planets?
<egg>
UmbralRaptor: I'm looking at all 7 planets here
<UmbralRaptor>
blarg
<egg>
UmbralRaptor: the longest period is the synodic period gh basically, and that's ~36 days
* UmbralRaptor
was hoping for something analogous to the 26 month earth-mars cycle, but between g and h.
<UmbralRaptor>
Ah
<egg>
fast planets are fast
<egg>
h has a sidereal period of 18.76 days
<UmbralRaptor>
Ultracool dwarfs are smol.
<egg>
UmbralRaptor: although I guess if you're looking at the outer planets from e, you may have noticed that there's a night sky, so you can detect the sidereal year?
<egg>
calendars without days or seasons are weird :-p
<UmbralRaptor>
egg: something like how some calendars track what constellation the full moon is in?
<egg>
UmbralRaptor: I mean basically all calendars are going to have some conception of the year of the planet they're on, and here I'm not doing that because I only use synodic periods wrt the planet
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<UmbralRaptor>
I guess the night siders definitely know what a sidereal year is (weather permitting), but that's even shorter than 36 days.
<kmath>
<bofh453> OH: "a sentence I just read: "…it is a straightforward consequence of Grothendieck's version of the Atiyah-Singer-H… https://t.co/2ZehLmt2iB
<egg>
UmbralRaptor: yes, but it's not a multiple of the synodic periods, so suddenly you can get long periods from the convergents
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<UmbralRaptor>
Yay
<xShadowx>
dogs arent cats, dogs are too dumb to be cats
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<bofh>
brb microwave is on fire
<UmbralRaptor>
xShadowx: tapetum lucidum
<UmbralRaptor>
bofh: uh
<xShadowx>
too much spices in the chili
<bofh>
okay good the breaker blew and it seems to have burned itsself out, judging by the smell I'm fairly certain the transformer winding caught on fire, prolly due to a short.
<egg>
meow
* UmbralRaptor
meows at egg per GDPR requirements.
* bofh
also meows at egg per the same
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<UmbralRaptor>
With all the mutual staring, one should probably just ask the void out.